Recent advances in proton exchange membrane water electrolysis

Abstract

This review scrutinizes recent progress in PEMWE system including mechanisms, the correlation among structure-composition–performance, manufacturing, system design and operation protocols. The challenges and perspectives for applications are proposed.

Nanoelectrocatalysts for Anodic Oxygen Evolution in Acid: A Review

“…It is therefore attractive for the development of robust and low-cost OER electrocatalysts. In recent years, researchers have been actively exploring OER catalysts which can maintain high activity and long-term durability in acidic media. , In this review, the basic concept of the OER, the catalytic mechanism of electrocatalysis, and the key electrochemical parameters of electrocatalysis have been discussed in detail, and the research progress in the field of noble metal based nanomaterial catalysts and non noble metal based nanomaterial catalysts in recent years has been comprehensively and critically summarized. The strategies to improve the catalytic activity of nanomaterials have been discussed from the aspects of morphology, crystallinity, defect, and strain engineering.…”

Recent advances and perspectives of Ir-based anode catalysts in PEM water electrolysis

“…4–6 Hydrogen (H 2 ) has the advantages of high calorific value, high energy density, and being environmentally friendly, and is considered an ideal energy carrier to alleviate energy and climate problems. 7,8 Hydrogen can be generated by water electrolysis technology driven by renewable energy built using a clean energy system to realize a green hydrogen cycle. 9,10 At present, there are mainly two types of water electrolysis technology used in industry: alkaline water electrolysis (AWE) and proton exchange membrane water electrolysis (PEMWE).…”

Proton-Conducting Membranes from Polyphenylenes Containing Armstrong’s Acid

“…Proton-exchange membranes (PEMs) can be used in diverse applications. Besides their most prominent use in fuel cells − as an ion-selective layer separating the two half cells, they can be utilized in electrolysis, , water treatment, , and redox-flow batteries. − Material requirements for PEMs range from performance to stability, straightforward and reproducible preparation to economy of components, and finally aspects of recycling. Especially, thermal, mechanical, and chemical stabilities are a necessity, as well as a sufficiently high proton conductivity, usually considered to be σ > 0.1 S·cm –1 .…”